I distinguish two kinds of criminal wrongs. A wrongdoer who acts in defiance of his conscience is guilty of what I call a wicked wrong. A wrongdoer who does not act in defiance of his conscience is guilty of what I call a vicious wrong. The distinction is derived from a conception of immorality typically associated with the Christian tradition. The distinction is important because it determines the moral message a wrongdoer should try to send through the punishment or penance he must endure in order to atone for his wrongdoing.